Tips:
Jargon is derived from the Middle English jargoun, which means "unintelligible speech or gibberish." Because it refers to a language that most people can't clearly understand, jargon has also come to denote specialized terminology used in certain professions, which people outside the field don't use or understand. Legal jargon and medical jargon are two, common examples.

Usage Examples:

I tried to read over the contract before I signed it, but I couldn't understand any of the legal jargon. (terminology, lingo)

Because computers are so prevalent, it's become increasingly important to learn the technical jargon of computer science. (lingo, terminology)

The toddler used a babbled jargon that only his mother could understand. (gibberish)

I like my doctor because she always explains everything in lay terms, rather than medical jargon. (lingo, vernacular)

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